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Two new studies are adding to concerns about one of the most troubling scenarios for future climate change: the possibility that global warming could slow or shut down the Atlantic’s great ocean circulation systems, with dramatic implications for North America and Europe.
The research, by separate teams of scientists, bolsters predictions of disruptions to global ocean currents — such as the Gulf Stream — that transfer tropical warmth from the…

Dena DeYoung traces her trouble with math back to sixth grade, when a well-intended placement test showed she was smart enough to do advanced work.
And for several years, DeYoung did well. But when she reached high school, math became her worst subject. Lost by the logic, unable to imagine how what she was learning would ever come into play in the real world, her math grades plummeted.
“I just…

At early ages, girls often outperform boys in math and science classes. Later, something changes. By the time they get into high school, girls are less likely than boys to take difficult math courses and less likely, again, to go into careers in science, technology, engineering or medicine. To learn more about this, David Greene spoke with NPR social science correspondent Shankar Vedantam.
Click here to read/listen to this September…

The past several years have been bruising ones for the credibility of the social sciences. A star social psychologist was caught fabricating data, leading to more than 50 retracted papers. A top journal published a study supporting the existence of ESP that was widely criticized. The journal Science pulled a political science paper on the effect of gay canvassers on voters’ behavior because of concerns about faked data.
Now, a…